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MAX1684EEE from MAXIM,MAXIM - Dallas Semiconductor

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MAX1684EEE

Manufacturer: MAXIM, MAX

Low-Noise / 14V Input / 1A / PWM Step-Down Converters

Partnumber Manufacturer Quantity Availability
MAX1684EEE MAXIM, MAX 1060 In Stock

Description and Introduction

Low-Noise / 14V Input / 1A / PWM Step-Down Converters The MAX1684EEE is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4V to 28V  
- **Output Voltage Range:** Adjustable from 1.25V to 26V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 500kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-QSOP (Quad Flat Small Outline Package)  

### **Descriptions:**  
The MAX1684EEE is a synchronous-rectified, step-down DC-DC converter optimized for high efficiency and compact designs. It integrates a power MOSFET switch and synchronous rectifier, reducing external component count. The device operates in pulse-width modulation (PWM) mode for stable output voltage regulation.  

### **Features:**  
- **Integrated Power MOSFETs** – Simplifies design and reduces external components.  
- **Synchronous Rectification** – Improves efficiency compared to diode-based designs.  
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.  
- **Soft-Start Function** – Prevents inrush current at startup.  
- **Overcurrent Protection** – Safeguards against excessive load conditions.  
- **Thermal Shutdown** – Protects the device from overheating.  
- **Adjustable Output Voltage** – Set via external resistors.  

This information is based solely on the manufacturer's datasheet for the MAX1684EEE.

Application Scenarios & Design Considerations

Low-Noise / 14V Input / 1A / PWM Step-Down Converters

Alternative Part Number

  • TPS61020DRCR --: Boost converter in the same class with comparable input voltage range and current capability, widely available and pin-compatible in function.
  • LT1932ES6 --: Constant-current boost LED driver with similar topology and electrical ratings, suitable as a functional replacement.
  • AP3015AKTR-G1 --: Low-cost boost converter offering similar switching characteristics and output capability for the same application.
  • AP3012KTR-G1 --: Low-cost boost converter with similar voltage and current ratings, usable as a drop-in alternative with minor layout checks.
  • LTC3406ES5 --: High-efficiency step-down DC-DC converter in a small package, functionally similar to the MAX1684 for low-voltage buck applications.
  • TPS62040DRC --: Wide-input synchronous buck converter with comparable current capability and efficiency, suitable as a drop-in functional replacement.
  • AP3402KTR-G1 --: Compact 2A synchronous step-down converter offering similar input range and output performance at low cost.

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